/**
 * Created with IntelliJ IDEA.
 * Description: Hello,I would appreciate your comments~
 * User:
 * Date: -03-27
 * Destination:
 */

 class Person{

    private String name = "Person";

    int age=0;

}

public class Child extends Person{

    public String grade;

    public static void main(String[] args){

        Person p = new Child();

        System.out.println();

    }

}